Найду корень уравнения: log(-cos(x))=0
log(v)=p
v=e^p
x1 = -78.5398159953694
x2 = 15.7079628887667 - 1.5310835436628e-6*i
x3 = 34.5575194123513 + 1.49322314020836e-6*i
x4 = -9.42477771481239 + 1.49598909371989e-6*i
x5 = 91.106187597873
x6 = 9.42477695336787 - 8.41651864007039e-7*i
x7 = -40.8407048462995 - 4.28442091692089e-8*i
x8 = 47.1238895754234 - 1.34578254637189e-8*i
x9 = -47.1238889150739 + 1.15980313140913e-6*i
x10 = 40.8407041550563
x11 = -34.5575188333352
x12 = -84.823001441919 + 9.0459417628826e-7*i
x13 = -47.1238901689402
x14 = 40.8407056026057
x15 = -84.8230010779785
x16 = -53.4070753064322
x17 = -3.14159300683281
x18 = 84.823002805596
x19 = 3.1415932585699
x20 = -47.1238887896178
x21 = 72.2566310277163
x22 = -91.1061859802604
x23 = -34.5575202359721
x24 = -97.3893719631857 + 1.50008920678299e-6*i
x25 = 28.274333892804 + 1.49301342145955e-6*i
x26 = 97.3893713350675
x27 = 21.9911485190215 - 1.49450374896419e-6*i
x28 = 97.389372654126
x29 = -21.991148586432
x30 = -72.256630857317
x31 = -65.9734457648386
x32 = -72.2566313408537 - 1.52865578604993e-6*i
x33 = -59.690260391105 + 1.48395922980631e-6*i
x34 = -59.6902604579606
x35 = 53.4070741478622
x36 = 9.4247769576896
x37 = 3.14159329215353 + 2.09804467156517e-7*i
x38 = -65.9734457642993 - 1.50162185715374e-6*i
x39 = -34.5575201938684 - 9.23582602445219e-7*i
x40 = -40.8407050959251
x41 = 91.1061864073649
x42 = 28.2743338651582
x43 = -40.8407043026032 + 1.00700548629003e-6*i
x44 = 9.42477832891555
x45 = 15.7079634632083
x46 = 84.82300131674
x47 = -40.8407039100223
x48 = -28.2743342244749 - 1.53075867463968e-6*i
x49 = -78.5398173320079 - 1.0041127413933e-6*i
x50 = 40.8407053136288 + 1.26979744059389e-6*i
x51 = 53.4070754913975
x52 = 97.3893712747287 - 6.79396469824751e-7*i
x53 = -91.1061873312798
x54 = -3.14159179855115 + 1.21754591573297e-6*i
x55 = 59.6902599988118 - 1.52900905954282e-6*i
x56 = -21.9911486223098 - 1.49748435542632e-6*i
x57 = 91.1061876923931 + 2.9944202033124e-7*i
x58 = 59.6902606235069
x59 = -97.3893724664065
x60 = -28.2743336970608
x61 = -9.42477814652397
x62 = -78.5398174338057
x63 = 78.5398161731332
x64 = 65.9734457530642
x65 = 53.4070741096774 - 7.5979643377144e-7*i
x66 = -15.7079632966706
x67 = -53.4070748400409 + 1.49836390976079e-6*i
x68 = 3.14159236458576 - 2.63281330975343e-8*i
x69 = 91.1061869569737 - 1.09122326428067e-6*i
x70 = -84.8230022649727
x71 = 34.5575190133278
x72 = -15.7079632493787 + 1.48800788016902e-6*i
x73 = 78.5398165412932 + 1.49027989831608e-6*i
x74 = 47.1238904278493
x75 = 47.1238892401961
x76 = -91.1061860368827 + 1.09713577807784e-6*i
x77 = 21.9911485852153
x78 = 72.2566310354099 + 1.49907774385622e-6*i
x79 = -84.823002057095 - 6.32153179513451e-8*i
x80 = 84.8230024224715 + 1.3162032596162e-6*i
x81 = 65.9734456596322 - 1.49258928468334e-6*i
x82 = -3.14159159553391
x83 = 47.1238904934905 + 2.52383826972603e-7*i
x84 = 3.14159207244778